¡What kind of licenses are necessary for the Jetfoil crew in Japan?

The licenses required for the crew of the Jetfoil are as follows in case of a coastal service. Although the statutory crew members are a captain, a chief engineer and an engineer, total three (3), but in Japan the Jetfoil has been commonly operated by four (4) crew members adding one chief officer.
captain chief engineer engineer
6th grade of SCC 3rd grade of SCC 4th grade of SCC

SCC: seamen's competence certificate


¡Can the Jetfoil cruise at FOILBORNE mode in night time?

In Japan, it had not been permitted for the Jetfoil to cruise at FOILBORNE mode in night time due to the provisional regulation for hydrofoils issued in 1961 by The Ministry of Transportation. It was in July 1991 when the Jetfoil could sail at FOILBORNE mode in night time, on the conditions that the new requirements to ensure safety are satisfied. The new requirements prescribed the approval standards for cruising at FOILBORNE mode in night time was issued by the maritime traffic bureau in The Ministry of Transportation.